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vertical spacer Covalent Instruction Learning Aid
Using the Main Group elements only, this manipulable will allow a student to see clearly the covalents in the groups. . . . R.A. (completed, 5/19/2016)

vertical spacer Closing the Gaps Lesson
Using the standard IUPAC flat table, students will close half the gaps and integrate the f-block.
Then find the remaining gaps (period ends, beginnings) and try to close the atomic number sequences.
Following this they will see that on the 3D Forever Alexander Arrangement periodic table how all this is done in an un-skewed construction. . . . J.B.
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